[PULL 09/15] Hexagon (target/hexagon) Make generators object oriented - gen_analyze_funcs

[Brian Cain <bcain@quicinc.com>]

From: Taylor Simpson <ltaylorsimpson@gmail.com>

This patch conflicts with
https://lists.gnu.org/archive/html/qemu-devel/2023-11/msg00729.html
If that series goes in first, we'll rework this patch and vice versa.

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20231210220712.491494-8-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
---
 target/hexagon/gen_analyze_funcs.py | 163 +---------------------------
 target/hexagon/hex_common.py        | 151 ++++++++++++++++++++++++++
 2 files changed, 157 insertions(+), 157 deletions(-)

diff --git a/target/hexagon/gen_analyze_funcs.py b/target/hexagon/gen_analyze_funcs.py
index c3b521abef..a9af666cef 100755
--- a/target/hexagon/gen_analyze_funcs.py
+++ b/target/hexagon/gen_analyze_funcs.py
@@ -23,162 +23,6 @@
 import hex_common
 
 
-##
-## Helpers for gen_analyze_func
-##
-def is_predicated(tag):
-    return "A_CONDEXEC" in hex_common.attribdict[tag]
-
-
-def analyze_opn_old(f, tag, regtype, regid, regno):
-    regN = f"{regtype}{regid}N"
-    predicated = "true" if is_predicated(tag) else "false"
-    if regtype == "R":
-        if regid in {"ss", "tt"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_reg_read_pair(ctx, {regN});\n")
-        elif regid in {"dd", "ee", "xx", "yy"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_reg_write_pair(ctx, {regN}, {predicated});\n")
-        elif regid in {"s", "t", "u", "v"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_reg_read(ctx, {regN});\n")
-        elif regid in {"d", "e", "x", "y"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_reg_write(ctx, {regN}, {predicated});\n")
-        else:
-            hex_common.bad_register(regtype, regid)
-    elif regtype == "P":
-        if regid in {"s", "t", "u", "v"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_pred_read(ctx, {regN});\n")
-        elif regid in {"d", "e", "x"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_pred_write(ctx, {regN});\n")
-        else:
-            hex_common.bad_register(regtype, regid)
-    elif regtype == "C":
-        if regid == "ss":
-            f.write(
-                f"    const int {regN} = insn->regno[{regno}] "
-                "+ HEX_REG_SA0;\n"
-            )
-            f.write(f"    ctx_log_reg_read_pair(ctx, {regN});\n")
-        elif regid == "dd":
-            f.write(f"    const int {regN} = insn->regno[{regno}] " "+ HEX_REG_SA0;\n")
-            f.write(f"    ctx_log_reg_write_pair(ctx, {regN}, {predicated});\n")
-        elif regid == "s":
-            f.write(
-                f"    const int {regN} = insn->regno[{regno}] "
-                "+ HEX_REG_SA0;\n"
-            )
-            f.write(f"    ctx_log_reg_read(ctx, {regN});\n")
-        elif regid == "d":
-            f.write(f"    const int {regN} = insn->regno[{regno}] " "+ HEX_REG_SA0;\n")
-            f.write(f"    ctx_log_reg_write(ctx, {regN}, {predicated});\n")
-        else:
-            hex_common.bad_register(regtype, regid)
-    elif regtype == "M":
-        if regid == "u":
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_reg_read(ctx, {regN});\n")
-        else:
-            hex_common.bad_register(regtype, regid)
-    elif regtype == "V":
-        newv = "EXT_DFL"
-        if hex_common.is_new_result(tag):
-            newv = "EXT_NEW"
-        elif hex_common.is_tmp_result(tag):
-            newv = "EXT_TMP"
-        if regid in {"dd", "xx"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(
-                f"    ctx_log_vreg_write_pair(ctx, {regN}, {newv}, " f"{predicated});\n"
-            )
-        elif regid in {"uu", "vv"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_vreg_read_pair(ctx, {regN});\n")
-        elif regid in {"s", "u", "v", "w"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_vreg_read(ctx, {regN});\n")
-        elif regid in {"d", "x", "y"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_vreg_write(ctx, {regN}, {newv}, " f"{predicated});\n")
-        else:
-            hex_common.bad_register(regtype, regid)
-    elif regtype == "Q":
-        if regid in {"d", "e", "x"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_qreg_write(ctx, {regN});\n")
-        elif regid in {"s", "t", "u", "v"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_qreg_read(ctx, {regN});\n")
-        else:
-            hex_common.bad_register(regtype, regid)
-    elif regtype == "G":
-        if regid in {"dd"}:
-            f.write(f"//    const int {regN} = insn->regno[{regno}];\n")
-        elif regid in {"d"}:
-            f.write(f"//    const int {regN} = insn->regno[{regno}];\n")
-        elif regid in {"ss"}:
-            f.write(f"//    const int {regN} = insn->regno[{regno}];\n")
-        elif regid in {"s"}:
-            f.write(f"//    const int {regN} = insn->regno[{regno}];\n")
-        else:
-            hex_common.bad_register(regtype, regid)
-    elif regtype == "S":
-        if regid in {"dd"}:
-            f.write(f"//    const int {regN} = insn->regno[{regno}];\n")
-        elif regid in {"d"}:
-            f.write(f"//    const int {regN} = insn->regno[{regno}];\n")
-        elif regid in {"ss"}:
-            f.write(f"//    const int {regN} = insn->regno[{regno}];\n")
-        elif regid in {"s"}:
-            f.write(f"//    const int {regN} = insn->regno[{regno}];\n")
-        else:
-            hex_common.bad_register(regtype, regid)
-    else:
-        hex_common.bad_register(regtype, regid)
-
-
-def analyze_opn_new(f, tag, regtype, regid, regno):
-    regN = f"{regtype}{regid}N"
-    if regtype == "N":
-        if regid in {"s", "t"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_reg_read(ctx, {regN});\n")
-        else:
-            hex_common.bad_register(regtype, regid)
-    elif regtype == "P":
-        if regid in {"t", "u", "v"}:
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_pred_read(ctx, {regN});\n")
-        else:
-            hex_common.bad_register(regtype, regid)
-    elif regtype == "O":
-        if regid == "s":
-            f.write(f"    const int {regN} = insn->regno[{regno}];\n")
-            f.write(f"    ctx_log_vreg_read(ctx, {regN});\n")
-        else:
-            hex_common.bad_register(regtype, regid)
-    else:
-        hex_common.bad_register(regtype, regid)
-
-
-def analyze_opn(f, tag, regtype, regid, i):
-    if hex_common.is_pair(regid):
-        analyze_opn_old(f, tag, regtype, regid, i)
-    elif hex_common.is_single(regid):
-        if hex_common.is_old_val(regtype, regid, tag):
-            analyze_opn_old(f, tag, regtype, regid, i)
-        elif hex_common.is_new_val(regtype, regid, tag):
-            analyze_opn_new(f, tag, regtype, regid, i)
-        else:
-            hex_common.bad_register(regtype, regid)
-    else:
-        hex_common.bad_register(regtype, regid)
-
-
 ##
 ## Generate the code to analyze the instruction
 ##     For A2_add: Rd32=add(Rs32,Rt32), { RdV=RsV+RtV;}
@@ -203,7 +47,11 @@ def gen_analyze_func(f, tag, regs, imms):
     i = 0
     ## Analyze all the registers
     for regtype, regid in regs:
-        analyze_opn(f, tag, regtype, regid, i)
+        reg = hex_common.get_register(tag, regtype, regid)
+        if reg.is_written():
+            reg.analyze_write(f, tag, i)
+        else:
+            reg.analyze_read(f, i)
         i += 1
 
     has_generated_helper = not hex_common.skip_qemu_helper(
@@ -236,6 +84,7 @@ def main():
     if is_idef_parser_enabled:
         hex_common.read_idef_parser_enabled_file(sys.argv[5])
     hex_common.calculate_attribs()
+    hex_common.init_registers()
     tagregs = hex_common.get_tagregs()
     tagimms = hex_common.get_tagimms()
 
diff --git a/target/hexagon/hex_common.py b/target/hexagon/hex_common.py
index fc9ce4e2b0..4565dd1953 100755
--- a/target/hexagon/hex_common.py
+++ b/target/hexagon/hex_common.py
@@ -486,6 +486,12 @@ def log_write(self, f, tag):
         f.write(code_fmt(f"""\
             gen_log_reg_write(ctx, {self.reg_num}, {self.reg_tcg()});
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        predicated = "true" if is_predicated(tag) else "false"
+        f.write(code_fmt(f"""\
+            ctx_log_reg_write(ctx, {self.reg_num}, {predicated});
+        """))
 
 class GprSource(Register, Single, OldSource):
     def decl_tcg(self, f, tag, regno):
@@ -493,12 +499,22 @@ def decl_tcg(self, f, tag, regno):
         f.write(code_fmt(f"""\
             TCGv {self.reg_tcg()} = hex_gpr[{self.reg_num}];
         """))
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_reg_read(ctx, {self.reg_num});
+        """))
 
 class GprNewSource(Register, Single, NewSource):
     def decl_tcg(self, f, tag, regno):
         f.write(code_fmt(f"""\
             TCGv {self.reg_tcg()} = get_result_gpr(ctx, insn->regno[{regno}]);
         """))
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_reg_read(ctx, {self.reg_num});
+        """))
 
 class GprReadWrite(Register, Single, ReadWrite):
     def decl_tcg(self, f, tag, regno):
@@ -517,6 +533,12 @@ def log_write(self, f, tag):
         f.write(code_fmt(f"""\
             gen_log_reg_write(ctx, {self.reg_num}, {self.reg_tcg()});
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        predicated = "true" if is_predicated(tag) else "false"
+        f.write(code_fmt(f"""\
+            ctx_log_reg_write(ctx, {self.reg_num}, {predicated});
+        """))
 
 class ControlDest(Register, Single, Dest):
     def decl_reg_num(self, f, regno):
@@ -532,6 +554,12 @@ def log_write(self, f, tag):
         f.write(code_fmt(f"""\
             gen_write_ctrl_reg(ctx, {self.reg_num}, {self.reg_tcg()});
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        predicated = "true" if is_predicated(tag) else "false"
+        f.write(code_fmt(f"""\
+            ctx_log_reg_write(ctx, {self.reg_num}, {predicated});
+        """))
 
 class ControlSource(Register, Single, OldSource):
     def decl_reg_num(self, f, regno):
@@ -544,6 +572,11 @@ def decl_tcg(self, f, tag, regno):
             TCGv {self.reg_tcg()} = tcg_temp_new();
             gen_read_ctrl_reg(ctx, {self.reg_num}, {self.reg_tcg()});
         """))
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_reg_read(ctx, {self.reg_num});
+        """))
 
 class ModifierSource(Register, Single, OldSource):
     def decl_reg_num(self, f, regno):
@@ -560,6 +593,11 @@ def decl_tcg(self, f, tag, regno):
     def idef_arg(self, declared):
         declared.append(self.reg_tcg())
         declared.append("CS")
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_reg_read(ctx, {self.reg_num});
+        """))
 
 class PredDest(Register, Single, Dest):
     def decl_tcg(self, f, tag, regno):
@@ -571,6 +609,11 @@ def log_write(self, f, tag):
         f.write(code_fmt(f"""\
             gen_log_pred_write(ctx, {self.reg_num}, {self.reg_tcg()});
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_pred_write(ctx, {self.reg_num});
+        """))
 
 class PredSource(Register, Single, OldSource):
     def decl_tcg(self, f, tag, regno):
@@ -578,12 +621,22 @@ def decl_tcg(self, f, tag, regno):
         f.write(code_fmt(f"""\
             TCGv {self.reg_tcg()} = hex_pred[{self.reg_num}];
         """))
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_pred_read(ctx, {self.reg_num});
+        """))
 
 class PredNewSource(Register, Single, NewSource):
     def decl_tcg(self, f, tag, regno):
         f.write(code_fmt(f"""\
             TCGv {self.reg_tcg()} = get_result_pred(ctx, insn->regno[{regno}]);
         """))
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_pred_read(ctx, {self.reg_num});
+        """))
 
 class PredReadWrite(Register, Single, ReadWrite):
     def decl_tcg(self, f, tag, regno):
@@ -596,6 +649,11 @@ def log_write(self, f, tag):
         f.write(code_fmt(f"""\
             gen_log_pred_write(ctx, {self.reg_num}, {self.reg_tcg()});
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_pred_write(ctx, {self.reg_num});
+        """))
 
 class PairDest(Register, Pair, Dest):
     def decl_tcg(self, f, tag, regno):
@@ -608,6 +666,12 @@ def log_write(self, f, tag):
         f.write(code_fmt(f"""\
             gen_log_reg_write_pair(ctx, {self.reg_num}, {self.reg_tcg()});
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        predicated = "true" if is_predicated(tag) else "false"
+        f.write(code_fmt(f"""\
+            ctx_log_reg_write_pair(ctx, {self.reg_num}, {predicated});
+        """))
 
 class PairSource(Register, Pair, OldSource):
     def decl_tcg(self, f, tag, regno):
@@ -618,6 +682,11 @@ def decl_tcg(self, f, tag, regno):
                                     hex_gpr[{self.reg_num}],
                                     hex_gpr[{self.reg_num} + 1]);
         """))
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_reg_read_pair(ctx, {self.reg_num});
+        """))
 
 class PairReadWrite(Register, Pair, ReadWrite):
     def decl_tcg(self, f, tag, regno):
@@ -633,6 +702,12 @@ def log_write(self, f, tag):
         f.write(code_fmt(f"""\
             gen_log_reg_write_pair(ctx, {self.reg_num}, {self.reg_tcg()});
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        predicated = "true" if is_predicated(tag) else "false"
+        f.write(code_fmt(f"""\
+            ctx_log_reg_write_pair(ctx, {self.reg_num}, {predicated});
+        """))
 
 class ControlPairDest(Register, Pair, Dest):
     def decl_reg_num(self, f, regno):
@@ -649,6 +724,12 @@ def log_write(self, f, tag):
         f.write(code_fmt(f"""\
             gen_write_ctrl_reg_pair(ctx, {self.reg_num}, {self.reg_tcg()});
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        predicated = "true" if is_predicated(tag) else "false"
+        f.write(code_fmt(f"""\
+            ctx_log_reg_write_pair(ctx, {self.reg_num}, {predicated});
+        """))
 
 class ControlPairSource(Register, Pair, OldSource):
     def decl_reg_num(self, f, regno):
@@ -661,6 +742,11 @@ def decl_tcg(self, f, tag, regno):
             TCGv_i64 {self.reg_tcg()} = tcg_temp_new_i64();
             gen_read_ctrl_reg_pair(ctx, {self.reg_num}, {self.reg_tcg()});
         """))
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_reg_read_pair(ctx, {self.reg_num});
+        """))
 
 class VRegDest(Register, Hvx, Dest):
     def decl_tcg(self, f, tag, regno):
@@ -680,6 +766,13 @@ def helper_hvx_desc(self, f):
         f.write(code_fmt(f"""\
             /* {self.reg_tcg()} is *(MMVector *)({self.helper_arg_name()}) */
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        newv = hvx_newv(tag)
+        predicated = "true" if is_predicated(tag) else "false"
+        f.write(code_fmt(f"""\
+            ctx_log_vreg_write(ctx, {self.reg_num}, {newv}, {predicated});
+        """))
 
 class VRegSource(Register, Hvx, OldSource):
     def decl_tcg(self, f, tag, regno):
@@ -696,6 +789,11 @@ def helper_hvx_desc(self, f):
         f.write(code_fmt(f"""\
             /* {self.reg_tcg()} is *(MMVector *)({self.helper_arg_name()}) */
         """))
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_vreg_read(ctx, {self.reg_num});
+        """))
 
 class VRegNewSource(Register, Hvx, NewSource):
     def decl_tcg(self, f, tag, regno):
@@ -709,6 +807,11 @@ def helper_hvx_desc(self, f):
         f.write(code_fmt(f"""\
             /* {self.reg_tcg()} is *(MMVector *)({self.helper_arg_name()}) */
         """))
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_vreg_read(ctx, {self.reg_num});
+        """))
 
 class VRegReadWrite(Register, Hvx, ReadWrite):
     def decl_tcg(self, f, tag, regno):
@@ -731,6 +834,13 @@ def helper_hvx_desc(self, f):
         f.write(code_fmt(f"""\
             /* {self.reg_tcg()} is *(MMVector *)({self.helper_arg_name()}) */
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        newv = hvx_newv(tag)
+        predicated = "true" if is_predicated(tag) else "false"
+        f.write(code_fmt(f"""\
+            ctx_log_vreg_write(ctx, {self.reg_num}, {newv}, {predicated});
+        """))
 
 class VRegTmp(Register, Hvx, ReadWrite):
     def decl_tcg(self, f, tag, regno):
@@ -755,6 +865,13 @@ def helper_hvx_desc(self, f):
         f.write(code_fmt(f"""\
             /* {self.reg_tcg()} is *(MMVector *)({self.helper_arg_name()}) */
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        newv = hvx_newv(tag)
+        predicated = "true" if is_predicated(tag) else "false"
+        f.write(code_fmt(f"""\
+            ctx_log_vreg_write(ctx, {self.reg_num}, {newv}, {predicated});
+        """))
 
 class VRegPairDest(Register, Hvx, Dest):
     def decl_tcg(self, f, tag, regno):
@@ -774,6 +891,13 @@ def helper_hvx_desc(self, f):
         f.write(code_fmt(f"""\
             /* {self.reg_tcg()} is *(MMVectorPair *)({self.helper_arg_name()}) */
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        newv = hvx_newv(tag)
+        predicated = "true" if is_predicated(tag) else "false"
+        f.write(code_fmt(f"""\
+            ctx_log_vreg_write_pair(ctx, {self.reg_num}, {newv}, {predicated});
+        """))
 
 class VRegPairSource(Register, Hvx, OldSource):
     def decl_tcg(self, f, tag, regno):
@@ -797,6 +921,11 @@ def helper_hvx_desc(self, f):
         f.write(code_fmt(f"""\
             /* {self.reg_tcg()} is *(MMVectorPair *)({self.helper_arg_name()}) */
         """))
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_vreg_read_pair(ctx, {self.reg_num});
+        """))
 
 class VRegPairReadWrite(Register, Hvx, ReadWrite):
     def decl_tcg(self, f, tag, regno):
@@ -825,6 +954,13 @@ def helper_hvx_desc(self, f):
         f.write(code_fmt(f"""\
             /* {self.reg_tcg()} is *(MMVectorPair *)({self.helper_arg_name()}) */
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        newv = hvx_newv(tag)
+        predicated = "true" if is_predicated(tag) else "false"
+        f.write(code_fmt(f"""\
+            ctx_log_vreg_write_pair(ctx, {self.reg_num}, {newv}, {predicated});
+        """))
 
 class QRegDest(Register, Hvx, Dest):
     def decl_tcg(self, f, tag, regno):
@@ -844,6 +980,11 @@ def helper_hvx_desc(self, f):
         f.write(code_fmt(f"""\
             /* {self.reg_tcg()} is *(MMQReg *)({self.helper_arg_name()}) */
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_qreg_write(ctx, {self.reg_num});
+        """))
 
 class QRegSource(Register, Hvx, OldSource):
     def decl_tcg(self, f, tag, regno):
@@ -861,6 +1002,11 @@ def helper_hvx_desc(self, f):
         f.write(code_fmt(f"""\
             /* {self.reg_tcg()} is *(MMQReg *)({self.helper_arg_name()}) */
         """))
+    def analyze_read(self, f, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_qreg_read(ctx, {self.reg_num});
+        """))
 
 class QRegReadWrite(Register, Hvx, ReadWrite):
     def decl_tcg(self, f, tag, regno):
@@ -883,6 +1029,11 @@ def helper_hvx_desc(self, f):
         f.write(code_fmt(f"""\
             /* {self.reg_tcg()} is *(MMQReg *)({self.helper_arg_name()}) */
         """))
+    def analyze_write(self, f, tag, regno):
+        self.decl_reg_num(f, regno)
+        f.write(code_fmt(f"""\
+            ctx_log_qreg_write(ctx, {self.reg_num});
+        """))
 
 def init_registers():
     regs = {
-- 
2.25.1